Headway Technology

OceanGuard Ballast Water Management System

OceanGuard™ BWMS is developed by Headway Technology Co., Ltd. together with Harbin Engineering University. OceanGuard™ BWMS adopts Advanced Electrocatalysis Oxidation Process (AEOP) to kill microbes, bacteria, viruses and dormant ovum in water by using special semiconductor materials under electron excitation and the hydroxyl radicals (·OH) formed by water molecules.

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AEOP Technology of OceanGuard™ BWMS

Hydroxyl radical (·OH) produced in AEOP is one of the most active substances with very strong oxidizability. It can have different kinds of chemical reactions with almost all biological macromolecules, microorganisms and other organic pollutants instantaneously. Besides, it has extremely fast reaction rate and strong negative charge electron affinities. The end products of reaction are CO2, H2O and traces of inorganic salt without any hazardous residuals. Therefore, the treated water can be discharged out of board without any pollution. The chemical reaction which involves hydroxyl radical is free radical reaction, and it is extremely fast. Generally, the reaction rate with organics is over 109 L/ (mol.s).

Moreover, the form and existence time of hydroxyl radicals is quite short, which is less than 10-12 s, so that the high efficiency and effectiveness of OceanGuard™ BWMS can be guaranteed.

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